Feed-water heater and purifier.



No. 772,774. V 7 PATENTED 007. 18, 1904 J. N. BARNUM. r FEED WATERHEATER AND PURIFIER.

APPLIOLTION FILED APR. 2, 1904.

Afforng/A UNITED STATES.

Patented October 18, 1904.

PATENT OFFIcE. a

JOHN N BARNUM, o-EcLEVELAND, OHIO.

FEED-WATER HEATER AND PURIFIER.

SPECIFICATION forming-part of-I net ters Patent No. 772,774, dated October 18, 1904.

' Application filed April g, i904. Serial n. 201,204. on; model.)

To all whom/it may concern; 7 v

Be it known that I, JOHN N. BARN M, acitizen of the United States, residing at Cleveland in the county of Guyahoga and State of Ohio, have invented new and useful Improvements in Feed-Water Heaters and Purifiers,of which the following is a specification.

This invention relates particularly to a feedwater heater and purifier for steam-boilers; and it is characterized particularly by a novel construction and also by the useof hot water from the boiler instead of steam to effect the heating and purifying action. Y

The use of water instead of steam is believed to give a better and quicker action, inasmuch as its volume and weight are greater and it induces greater activity and more thorough and rapid action.

The device is illustrated in the accompanying drawings, in which Figure 1 is a central vertical section. Fig. 2 is a horizontal section. v

Referring specifically to the drawings, 6 indicates a cylindrical vessel, which, with its cover 7, forms the outer casing of the heater. Within this casing are upper and lower hollow annular heads 8 and '9, which are connected by a series of vertical tubes 10. The upper head is near the top of the casing; but the lower head is at a distance from the bottom,

forming asediment-chamber 11, from which the matter deposited may be blown out through a pipe 12. The cold-water-inlet pipe is indicated at 13, leading through the wall of the casing intothe lower head 9.

The hot-water-supply pipe from'the boiler is indicated at 1 1, and it discharges through an injector-nozzle 15 at the center of the cover. This nozzle is downwardly presented, and a flow of water therethrough is induced by a flow through the smaller nozzle 16, which is connected by a T-fittingl'? and a pair of pipes 18 with the upper head 8.

Supported centrally within the casing is a cylinder 19, which is open at the lower end and closed at the upper end by an inverted conical plate 20, into the hollow of which the mouth of the nozzle 15 projects. The feedwater pipe to the boiler is indicated at 21, extending through the side of the casing near and the pipe 21-is connected near the bottom thereof. This permits a circulation between and through the heater and boiler. The cold water is pumped or injected through the pipe 18, and by reason of the comparatively large capacity of the head 9 and pipes 10 it rises slowly through the same, during which time it absorbs heat from the surrounding water in the casing and is thence forced through the pipe 18 and nozzle 16, the discharge from which induces a flow of boiling water through the pipe 14:. The boiling and colder'water is thus mixed, and the latter is heated to a high degree and flows thence slowly down in the space between the casing and the cylinder 19, imparting in its flow some ofits heat to the cold water rising in the pipes 10, as above described. The heating action and comparatively slow movement act'to deposit and dislodge the sediment which settles in the chamber in the bottomof the casing, .and the purified water rises slowly through the cylinder 19, which has a large capacity, and at the top enters the pipe 21 and is supplied to the boiler. The upward course of the water through the cylinder 19 is so slow that all of the solid matter sepa-' rated by the heat has time to settle tothe bottom of the casing. There is no agitation of the water orsediment in the lower part of the casing.'-' The discharge from the injector into the inverted'cone at the, top of the inner cylinder changes the course of the water and prevents any violent current through the lower part of theheater.

The device will be found very eflicient in operation and productive of good results in the precipitation and removal of foreign matter from the feed-water.

What I claim as new, and desire to secure by Letters Patent, is

1. 'In a feed-water heater and purifier, in

dium into the casing above the cylinder, a cold-Water pipe extending upwardly through the casing and discharging thereinto above the cylinder, and a feed-water pipe to the boiler, opening within the cylinder, near the upper end thereof.

2. A feed-water heater and purifier comprising, in combination, a casing, a water-supply pipe thereinto, heating-pipes of relatively large capacity connected to said supply-pipe and extending upwardly therefrom and having a discharge-nozzle into the upper part of the casing, a pipe for a heating medium, connected to the boiler and having a common discharge with said nozzle, a cylinder standing in the casing, closed at the upper end and open at the lower end, and a pipe leading from within the cylinder, near the upper end thereof, to the boiler.

3. In a feed-water heater and. purifier, in combination, a casing, a cylinder standing therein having a closure and chamber at the upper end and open at the lower end, a coldwater-supply pipe and a hot-water-supply pipe, which pipes discharge together into the said chamber, and a feed-water pipe leading from within the cylinder, near the top thereof, to the boiler.

&. In a feed-water heater and purifier, in combination, a casing, upper and lower annular heads therein, a series of tubes connecting said heads, a cold-water-suppl v pipe to the lower head, a cylinder standing within said rings and tubes, closed at the upper end and open at the lower end, an injecting-nozzle directed downwardly toward the upper end of the cylinder and connected to said upper head, a pipe for a heating medium, joined to and discharging through said nozzle, and a feed-pipe to boiler, opening within the cylinder near the upper end thereof.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN N. BARNUM. \Vitnesses:

JOHN A. BOMMHARDT, LOTTIE NEWBURN. 

